Self-cleaning sprocket

Details Self-cleaning sprocket Self-cleaning sprocket

1976-12-27

1978-02-07

Gerin, Leonard H.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

74229, F16H 5530, F16H 700

Patent

active

040720624

ABSTRACT:
A self-cleaning sprocket, especially for use with an endless belt having internal drive lugs in a crop gathering unit, being a body of material having a disk-like base portion and a plurality of radial ribs extending axially from the base portion and converging to a central hub portion, the ribs and base center portion defining a plurality of open-ended lug-receiving pockets. The portion of the base portion in the pockets slopes axially toward the open end from the periphery to the hub portion and the hub portion slopes radially inwardly from the base portion to the open end, the intersection of the hub and base portions being filletted to promote the flow of debris from the base portion to the hub portion. The axial end of the sprocket is preferably flat and without obstructions and extends beyond the lateral edge of the belt. The sprocket is preferably mounted with the pockets in a generally upright position from its opposite axial end whereat a second plurality of pockets are formed. Preferably, the circumferential pitch of the pockets is slightly greater than that of the lugs and the pockets are wider than the lugs to induce a sideward cleaning action.

REFERENCES:
patent: 3083583 (1963-04-01), Szonn
patent: 3472563 (1969-10-01), Irgens

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